Partition wall for furnaces



July 24, 1923- M. LIPTAK PARTITION WALL FOR FURNACES Filed April 8, 1922 Patented July 24, 1 .923,

TATES MICHAEL LIPTAK, OF ST. PAUL, MINNESOTA, ASSIGNOR TO A. P. GREEN FIRE BRICK COMPANY, OF MEXICO, MISSOURI, A CORPORATION OF MISSOURI.

PARTITION WALL FOR FURNACES.

Application filed April 8, 1922. Serial N0. 550,842.

To all whom it may concern:

Be it known that I, MICHAEL LIPTAK, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented certain new and useful Improvements in Partition falls for Furnaces; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My present invention is directed particularly to the provision of an improved central or partition wall for furnaces, and to such end the invention consists of the novel devices and combination of devices herein after described and defined in the claims.

Furnace walls of this character are very generally employed in connection with boilers installed in batteries, and, of course, such walls are subjected to very intense heat on both sides. Hence they require frequent repairs. Repairs on these partition walls, as hitherto designed, have been diflicult, and it has been necessary usually to take down substantially the entire wall, and generally the wall has been greatlv damaged.

My invention provides a composite partition wall comprising, in efiect, three walls, to wit: a permanent center wall, and replaceable facing walls; and my invention is directed to a novel remedied co-operative arrangement of these other walls, whereby, without damage to the center wall, any part of either facing wall may be readily replaced. in the preferred arrangement of this center wall I have used features of construction disclosed and claimed in the application filed by me of even date herewith and entitled Furnace wall, but the invention in this partition wall is not limited to such features, but is capable of a large range of modification within. certain general principles hereinafter disclosed or made manifest.

The invention is illustrated in the single perspective view which shows a partition wall with certain parts removed.

The permanent center wall is a fire brick or tile structure made up partly of fire bricks laid in courses forming belts 1. On these masonry belts 1 are laid sill blocks 2 in the form of fire tiles having on their upper faces lock channels 3, Fire brick pilasters 4 are built on the masonry belts 1 between the sill blocks 2, and lintels 5, preferably fire tiles, are laid on the pilasters 4 thus forming rectangular openings 6 in the permanent central wall. The pilasters 4 might be built on the sill blocks, but by the arrangement described it is made posslble to replace the sill blocks, if at any time it should become necessary.

The replaceable facing walls are made up in part of fire bricks laid to form belts 7 that rest on shelves, detachably anchored to the permanent center wall, by novel means which, as shown in the drawing, involves shelf-forming blocks 8 preferably having the cross-section dimensions of fire bricks, but they are considerably longer so that they will project into the openlngs 6 approximately at the center thereof while their ends project to the outer faces of the respective masonry belts 7. The inner ends of the shelf-forming blocks from the opposite sides of the wall nearly or quite abut, and they are provided with tapering ledges or lugs 9 that seat in the channels 3 of the sill blocks 2 and interlock the shelf-forming blocks to the latter. Key blocks 10,

preferably in the form of slightly wedgeshaped fire bricks, are placed on the tops of the blocks 8 and fill the space between the tops of said blocks 8 and the bottoms of the lintels 5.

Fire clay 11, or the like, is preferably filled into the space between the inner ends of the key blocks 10 and the bottoms of the linte1s. The key blocks 10 preferably project from the permanent wall the width of one fire brick so that a single row of fire bricks 7 placed end to end on the first layer on top of the shelf-forming blocks 8 and span the space between the groups of shelf-forming blocks 8 closed by the pilasters 4. These latter noted spaces will be filled in by ordinary fire bricks 7".

The perspective view shows how the bricks of. the replaceable facings may be in. part removed for the purpose of replacements, and it will be noted that the shelfforming blocks will support in position the complete masonry belt/Z. lhe uppermost portion of said view shows how the permanent center wall may be entirely stri ped of its fa'cings and of shelf-forming b coke and still left intact, W

Replacement of damaged fire bricks of the facing walls will, of course, be made before they are even completely burned away and the permanent wall damaged. Hence, the center wall will last almost indefinitely. To remove the shelf-forming blocks 8, it is, of course, necessary first to remove the overlying key blocks 10. This may be readily done since the ends of the latter will be exposed when the adjacent fire bricks are removed. When the'key blocks are removed the blocks 8. may be readily lifted out of their interlocking engagement with the sill blocks of the ermanent wall. lrVhen the shelf-forming locks and key blocks have been replaced the masonry belts of the facing walls may, of course, be readily and quickly built in.

The above described bisymmetrical arrangementof the shelf-forming blocks on opposite sides of the permanent wall evenly balance the strains on the permanent center wall and, moreover, the insertion of said shelf-forming blocks into the same holds and in the center wall simplifies the construc tion.

In building up the composite center wall in the first instance, the center wall and facing walls will preferably be progressively built up together, but it is possible and practical to first build the center wall and thereafter apply the facing walls.

Of course, the described bisymmetrical arrangement makes possible the use of duplicate parts on the two oposite facing walls. The groups of shelf-forming blocks might be made as one, but the multiple structure builds in more readily with brick work.

What I claim is:

1. A composite partition wall for furnaces comprising a ermanent center wall and shelf-forming e ements anchored to and projecting from opposite sides of said wall, and

replaceable facing walls anchored to said center wall by said shelf-forming elements.

2. A composite partition wall for furnaces comprising a permanent center wall and shelf-forming elements anchored to and projecting from opposite sides of said wall, and replaceable facing walls anchored to said center wall by said shelfforming elements and comprising horizontal belts of fire brick masonry supported on said shelves.

3. A composite partition wall for furnaces comprising a permanent center wall and shelf-forming elements anchored to and projecting from opposite sides of said wall, and'replaceable facin walls anchored to said center wall by said shelf-forming elements, said shelf-forming elements being in bisymmetrical arrangement on opposite sidesof said center wall.

4. A, composite partition wall for furnaces comprising a permanent center wall and shelf-forming elements anchored to and projecting from opposite sides of said wall, and replaceable facing walls anchored to said center wall by said shelf-forming elements, said shelf-forming elements being .detachably interlocked to said center wall.

ing walls the latter comprising shelf-forming blocks interlocked within the openings of said center wall and projecting in opposite directions therefrom and supporting ovefi'lying masonry belts of said facing wa s.

which there are key blocks placed on said shelf-forming and inserted into the wall openings to hold said shelf-forming blocks interlocked to said center wall.

In testimony whereof I afiix my signature.

MICHAEL LIPTAK.

7. The structure defined in claim 6 in 

